no fuel tout of injectors

Asked by Feb 06, 2013 at 01:44 PM about the Chevrolet Chevy Van

Question type: Maintenance & Repair

replaced fuel pump fuel reg spider injectors vcm still will notspray i have power to one side of i njectors do not know if i need it to pulse or have constant power i have fuel pressure 60ps at rail do i need to have the vcm progamed to vichile please help at a lose

5 Answers


fuel delivery sounds ready,now you need pulse from pcm i think it emits ground to injector circuit in varied band width for varied fuel supply,initiated by CPS and cam sensors to awake the pulse signal. a test light can show pulse on a injector wire pair if needed at crank speed


What year?


yes what year, could be bad ignition module, if module blows injectors won't pulse,



Security light on?

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